Mineral Insulated Thermocouples

Seamless sheathed Mineral Insulated Thermocouples provide reliability across a wide range of industry applications, from Aerospace to Brick Kiln and everything in-between.

We design and manufacture custom-made mineral insulated thermocouples for a variety of industries. With a vast range of uses from high temperature quench, to freezer survey, our sensors are designed to provide stability and reliability with increased accuracy.

The cable is drawn down or swaged from its original size to a range of diameters (from 0.5 to 12.7mm) thus compacting the MgO (Magnesium Oxide) insulation and providing a seamless metal sheath that protects the thermocouple from the environment.


  • Available as type J, K, N T & E
  • Operates in temperatures up to 1250 °C – depending on sensor construction
  • Cold end termination options include but are exclusive to; standard plugs & sockets, mini plugs & sockets, tails & cables
  • A wide range of outer sheathing options are available such as; Stainless Steel, Steel, Nickel Chromium Silicon alloy, Nickel Titanium & many others

View our other Mineral Insulated options;

Long Life Mineral Insulated Thermocouple
80% drift reduction at temperatures up to 1200 °C

Mineral Insulated Platinum Thermocouple
Platinum elements provide even more reliability and precision.

Mineral Insulated Thermocouple Assemblies
Sheathed bespoke assemblies designed to withstand the harshest environments.

To request a quote or for help and advice, get in touch with one of our temperature measurement experts.

Mineral Insulated Thermocouples